1996 1
1993 1
1991 1
1989 1
1989 2
1987 0
1985 0
1983 1
1980 1
1979 2
1977 1
1976 1
1975 0
1974 1
1973 0
1972 0
1970 1
1968 1
1965 0
1963 0
1961 2
1960 0
1955 0